speedlify2

Lighthouse lab metrics, Axe, and Chrome UX Report field data for a list of sites recorded and compared over time. Follow us on Mastodon or Bluesky.

Charts Compare Measurement runs Embed a score Open to Work

videojs.org

https://videojs.org/

71PERF 96A11Y 100BEST 100SEO !AXE !CWV

Ranks Overall #1,093 Astro Showcase #92

Data from Oct 2, 2026, 7:00 PM UTC old Measured once a month · 1 run since Oct 2, 2026

Elsewhere: PageSpeed Insights · Calibre · Treo · CrUX Vis · Tame the Bots · Scoring Calculator · Wayback Machine

Lab data is measured using Lighthouse, Mobile mode unless otherwise specified. Field data is reported from Chrome UX Report (using p75 measurements).

Stack

Astro 7.3.5 Built with Astro 7.3.5
Uses ReactReact
Netlify Hosted by Netlify

Lighthouse Scores LAB Simulated

71
Performance
no change
96
Accessibility
no change
100
Best Practices
no change
100
SEO
no change

Metrics LAB FIELD

Core Web Vitals: failing 3 of 3 assessed from real Chrome users.

Field figures are the p75 across real Chrome users over a 28-day trailing window (2026-09-02 → 2026-09-29), url-level.

Metric Lab Simulated Field
Value Change / range Trend p75 Distribution
LCP CWV Largest Contentful Paint 5.44 s poor — 5.44 s – 5.44 s 2.95 s needs work 66.8% 20.8% 12.4%
INP CWV Interaction to Next Paint — field only, no lab run can measure it n/a — 322 ms needs work 61% 23.2% 15.8%
CLS CWV Cumulative Layout Shift 0.004 good — 0.004 – 0.004 0 good 97.9% 1.1% 1.1%
TBT Total Blocking Time 302 ms needs work — 302 ms – 302 ms n/a —
FCP First Contentful Paint 2.21 s needs work — 2.21 s – 2.21 s 2.35 s needs work 56.8% 28.7% 14.6%
Speed Index 2.21 s good — 2.21 s – 2.21 s n/a —
TTFB Time to First Byte 636 ms good — 636 ms – 636 ms 1.06 s needs work 62.2% 26.8% 11.1%

LCP Subparts LAB Unthrottled

The subparts attribute LCP to your server, resource discovery, download, or rendering. Note that the Lab LCP shown above is a simulated throttled estimate.

element render delay 193 ms
resource load duration 25 ms
time to first byte 21 ms
resource load delay 9 ms

LCP LAB Simulated vs LCP FIELD

Lab 5.44 s
Field p75 2.95 s

The lab LCP is 1.84× the field p75 — real users likely have above-average hardware or network connectivity.

Page weight

Metric Value Change / range Trend
Page Weight 2.59 MB — 2.59 MB – 2.59 MB
Requests 264 — 264 – 264
Third-party Weight 1.57 MB — 1.57 MB – 1.57 MB
Third-party CPU 1 ms — 1 ms – 1 ms
Unused JS 319 kB — 319 kB – 319 kB
Unused CSS 0 B — 0 B – 0 B

By resource type

Type Transfer Share Size Requests
other 38.8% 1.01 MB 14
script 33% 855 kB 236
image 19.9% 517 kB 5
font 5.2% 135 kB 6
document 2% 50.9 kB 1
stylesheet 1.1% 28.9 kB 2
Total 2.59 MB 264

Third parties 1 entities

Entity Transfer Size Main thread Simulated
mux.com otherimage 1.57 MB 1 ms
Total 1.57 MB 1 ms

Page health

Metric Value Change / range Trend
Main Thread Work 3.60 s — 3.60 s – 3.60 s
Long Tasks 7 — 7 – 7
DOM Elements 473 — 473 – 473
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 5 — 5 – 5
A11y Failures 1 — 1 – 1
A11y Failing Nodes 5 — 5 – 5

Main thread work

Task Time Share Duration Simulated
other 50% 1.80 s
script evaluation 35% 1.25 s
style layout 8% 305 ms
script parse compile 2% 82 ms
paint composite render 2% 78 ms
parse HTML 1% 46 ms
garbage collection 1% 32 ms
Total 3.60 s

Axe violations axe-core 4.13.0, full rule set

5 violating nodes across 1 rule, 767 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

  • serious color-contrast — Elements must meet minimum color contrast ratio thresholds 5 nodes
    Offending elements
    1. .mb-2\.5 
      <h3 class="mb-2.5 border-b border-manila-dark py-3 text-center font-display text-h5 font-bold text-orange uppercase md:mb-0 md:border-0 md:py-0 md:text-left dark:border-line">Corporate Shepherd</h3>
    2. .h-auto.md\:border-manila-dark.md\:px-0:nth-child(1) > .block.border-t.py-5 
      <h3 class="relative block border-t border-manila-dark py-5 text-center font-display text-h5 font-bold text-orange uppercase md:hidden">CDN</h3>
    3. .h-auto.md\:border-manila-dark.md\:px-0:nth-child(2) > .block.border-t.py-5 
      <h3 class="relative block border-t border-manila-dark py-5 text-center font-display text-h5 font-bold text-orange uppercase md:hidden">Emeritus Sponsor</h3>
    4. .h-auto.md\:border-manila-dark.md\:px-0:nth-child(3) > .block.border-t.py-5 
      <h3 class="relative block border-t border-manila-dark py-5 text-center font-display text-h5 font-bold text-orange uppercase md:hidden">Device Testing</h3>
    5. .h-auto.md\:border-manila-dark.md\:px-0:nth-child(4) > .block.border-t.py-5 
      <h3 class="relative block border-t border-manila-dark py-5 text-center font-display text-h5 font-bold text-orange uppercase md:hidden">Static Hosting</h3>

Accessibility failures 1 of 30 audits

  • color-contrast — Background and foreground colors do not have a sufficient contrast ratio. 5 nodes

Hygiene

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h2

Measurement log

Field history 25 weeks

Weekly p75 from the CrUX History API, backfilled in a single request.

Week ending LCPINPCLSFCPTTFB
2026-09-26 3.00 s 362 ms 0.010 2.40 s 1.11 s
2026-09-19 3.10 s 438 ms 0.010 2.54 s 1.22 s
2026-09-12 3.14 s 493 ms 0.010 2.57 s 1.25 s
2026-09-05 3.09 s 501 ms 0.010 2.55 s 1.30 s
2026-08-29 3.02 s 480 ms 0.010 2.52 s 1.27 s
2026-08-22 2.96 s 471 ms 0 2.43 s 1.24 s
2026-08-15 2.90 s 505 ms 0 2.42 s 1.22 s
2026-08-08 2.92 s 504 ms 0 2.40 s 1.15 s
2026-08-01 2.89 s 493 ms 0 2.37 s 1.13 s
2026-07-25 2.83 s 480 ms 0 2.35 s 1.13 s
2026-07-18 2.75 s 451 ms 0 2.30 s 1.14 s
2026-07-11 2.75 s 439 ms 0 2.33 s 1.16 s

Runs

Every stored run for this URL, newest first.

When Scores PerfLCPCLSTBTWeight RunsSpreadBenchTook Archive
Oct 2, 2026, 7:00 PM UTC 71 5.44 s 0.004 302 ms 2.59 MB 3/3 ±21 2,435 -2% 37.7s Wayback